Teresa Reichlen was born in Clifton, Virginia. She began her dance training at the age of 10 at the Russell School of Ballet with Thomas and Illona Russell, Mary Rogers, and Margaret McGarry. In 1999, Ms. Reichlen studied at the summer program of the School of American Ballet (SAB), the official school of New York City Ballet. She entered SAB full-time in the fall of the same year. In October 2000, Ms. Reichlen became an apprentice with New York City Ballet, and in October 2001 she joined the Company as a member of the corps de ballet. In January 2005, Ms. Reichlen was promoted to the rank of soloist and in October 2009 was promoted to principal dancer.